About the Number

238287231

238287230 ← → 238287232

2進数表記:1110001100111111100101111111

漢数字表記:二億三千八百二十八万七千二百三十一

素因数分解:

3 3 × 7 1 × 13 1 × 293 1 × 331 1

素因数の和:653
約数の個数: 64
約数和(自身を含む): 437283840
約数和(自身を除く): 198996609

約数列:
[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 293, 331, 351, 819, 879, 993, 2051, 2317, 2457, 2637, 2979, 3809, 4303, 6153, 6951, 7911, 8937, 11427, 12909, 18459, 20853, 26663, 30121, 34281, 38727, 55377, 62559, 79989, 90363, 96983, 102843, 116181, 239967, 271089, 290949, 678881, 719901, 813267, 872847, 1260779, 2036643, 2618541, 3782337, 6109929, 8825453, 11347011, 18329787, 26476359, 34041033, 79429077, 238287231]

約数ペア:
[(1, 238287231), (3, 79429077), (7, 34041033), (9, 26476359), (13, 18329787), (21, 11347011), (27, 8825453), (39, 6109929), (63, 3782337), (91, 2618541), (117, 2036643), (189, 1260779), (273, 872847), (293, 813267), (331, 719901), (351, 678881), (819, 290949), (879, 271089), (993, 239967), (2051, 116181), (2317, 102843), (2457, 96983), (2637, 90363), (2979, 79989), (3809, 62559), (4303, 55377), (6153, 38727), (6951, 34281), (7911, 30121), (8937, 26663), (11427, 20853), (12909, 18459)]

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